Rotary machine.



No. 885,731. l PATBNTED L1P11. 28, 1903. P. J. DAPLINGTON.

ROTARY MACHINE.

APPLICATION P'ILBD sPPLm, 1901.

/NvE/Vrofe En STATES P omen.

B'UTABY HA.

Specification of Letten Patent.

Patented Apnl 28, 1908.

appone@ man rayman 1o, um. anni n. 392,158.

To all whom 'it may mmm-n:

Bv it known that 1, Pinup J. Dorus, o the city of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful 1m rovement in llolary lllacllines, of which t e following is a lull, clear, and exact description.

My invention relates to the general class of rotary machines and as described and illustrated herein is more particularly adapted to that. kind of machine which d ed to be passed through boiler tubes and is used in connection with" boiler tubes' to remove the scale therefrom. 1t will be evident however that my improvements are adapted-for other purposes than that just described.

(lne of the objects oi 1m invention is to simplify the construction o rotary machines and to reduce the oost of nmuufmturing the saine and to so adapt it that it may be used for various sizes of boiler ltubes as we l as for general )py ey where rotary 'machines are cinplo Moreover by means of my invention the parts of my machine are easily ins ted and repaired; these' and other advantageous features resulting from the eniplo ent' of my device will be readily seen to t ose who are skilled in the art.

Referring to the drawings 1 is a view partly in plan and partly in section oi my rotary machine. Fig. 2 is a section taken on the liue'A-B of Fig. 1.l 3 ,is a section taken on the line E-F of Fi 1. 4

is a section taken on the line C- oi `1.V

Fig. 5 is a artinl end view of Fig. 3.

n the clprawings I- show a head 1 having one end the 1la`e 2 and at the other end a flange 3. Thee 3 is provided with a recessed seat 4 into which the casing 5 is' adapted to seat At the op osite end of my machine `is a head 6 provided scat 7. into which the casing 5 is adapted to seat; the casing 5 being thus held between the recessed seat 4 of the head 1 and the recesscd scat 7 of the head 6.

The casing 5 and the heads 1 and 6 are secured t/o ether by means of bolts 15 and nuts 16. 'ghe casing isprovided eccentrically with a longitudinal :bore or chamber.

Mounted eccentrically in this chamber, and..

concentrically with reference to the exterior of the casing, is a pist/on 8 which is slotted, and loosely mounted the slot is a blade'- or istou wing 9 adapted when travclinginthe orc of the casing 5 to at all times be in conwith a recesscdv p leced .in the slot and removed therefrom by sim ly removing the head 6.

'ige head 6 is provided with means, such as the threaded openings 17,*for the attachment of the conduct' pipe or hose which su plies the motive cit er liquid or aseous. Said head is provided with an et portA 12, which leads directly into the cylinder 5 and conducts the motive duid into contact with the blade 9 of the piston 8 to revolve the piston after which it is conducted in part through exhaust port 13 and in part through exhaust ports 14. e

y At 20 l `provide a pressure opening which leads formV the bore of the casing 5 op ositc the inlet port 12 to the rear face of the ushing 10 thereby partially balancing the pressure Von the plston 8 and preventing its forward thrust upon b 10;

In Fig. 5 'I haveshown at 18 anexhaust port through which the exhaust from port 13 may be carried; and attlll) I hav show? il] ntfched o i.' mndein e ri eryot e anges giedgof the head l or t e purpose of allowfor the exhaust from the orts 14. i be apparent that the notche opening 19 is an alternative construction to that shown at 18, or both the port 18 and. the

notched opening 19 may be used for the pur- Y pose described in the saine machine.

It should be that the piston 8 is always in contact with that portion of the cylattschn Us; thereto any desired tool. The

end o nid, which may beV inder 5 whichis between the inlet port 12 and the exhaust ports already described Athus preventing the pesage of motive iluid directly from inlet Port 12 to the exhaustports without actua the blade 9. 1

thus described the several parts of my machine 1 will now describe its operation: Airis admitted through the inlet port 12 and paes thence inside the cylinder 5 behind the blade 9 which it thereby actuates and the blade isthus carried around the periphery of the bore of the 5 thus revolving the piston 8 upon its bearing in the 'ii i 10 and thereby actuating t e tool attache at the end 11 of the piston 8; the air travels back ofthe blade until it reaches the enst ports 13 and 14 when it is conducted partly through the ports 14 exterior to the machine or it may be partly conducted through the exhaust port -13 and thence led through the port 18 exterior to the machine thereby causlng a forward movement of the exhaust as it passes from the exhaust ort 13 and thence through the ports 18 an 19 exterior to the machine.

It should be noted that my piston is inurnaled only at one end and thereby the friction of its revolution is diminished and morenotched o enin 19 forwardly in the machine and thus t e eX aust will be viven a forward direction to the exterior of the machine toward the driven tool. While I have shown my device as made up of a rear head ti and casing 5 and a forward head 1. it is of course possible to combine the casing with either of the twoheads.

Having thus described my invention what I claim is:

1. In a rotary machine, the combination with its casing of a piston journaled at one end, means for conducting motive duid for actuatin the said piston and means for partially balancing the pressure of the motive fluid on the rear end of the iston.

2. In a rotary machine, t e combination with its casing of a single flanged rear head, a double flanged forward head and means for uniting the said heads and casing.

3. In a rotary machine, the combination of a casing having a piston chamber, and a t piston therein provided with o. forward reduced portion journaled in the casing and forming a shoulder with the piston proper, said being provided with an inlet for the motive fluid and with a ort leading from the chamber to the forward shoulder of the piston to counterbalance the pressure of the motive fluid on the rear end of said piston.

4. A rotarymachine com rising a frame provided with a piston cham er and with an axial portion of relatively small diameter and having an enlarged lange at its end, and a rotary piston mounted axially in said frame, the exhaust being from the forward end of said piston chamber and the flange of said frame being rovided with an opening for the escape of exhaust.

5. A rotary machine com )rising a frame provided with a piston chaniber and with a forwardly projecting portion of smaller diameter provided on its end with an enlarged flange, a rotary piston journaled axially in said frame and having a journal portion projecting through said reduced portion and provided with tool carrying means, said piston bei a' slotted, and a piston blade mounted in said slot, the exhaust being from the forward end of said iston chamber and the ange on the reduce portion being provided with an opening for the escape of the exhaust..

6. A. rotary tube cleaner, comprising a frame formedr with a portion of relatively small diameter having a flange at each end, a rotary piston provided at one end with a slotted portion and journaled at its other end in said small portion of the frame, a piston blade mounted in the slotted portion of said piston, means for furnishing a. fluid supply lo said piston, and means for conducting t ie exhaust through the flanges of said frame.

In testimony whereof I have hereunto set niy hand in the presence of two witnesses.

PHILIP J. DARLINGTON.

Witnesses:

ETHEL A. KELLY, J. Wn. ELLIS. 

